Perylene-3,4,9,10-tetracarboxylic acid monoanhydride-monoimides, process for their preparation and their use
Abstract
Abstract Translated from German Verbindungen der Formel in der R Wasserstoff, Hydroxy, Amino oder gegebenenfalls substituiertes Alkyl, X Chlor oder Brom und n Null bis 4 bedeuten, werden aus den entsprechenden Perylen-3,4,9,10-tetracarbonsäure-monoanhydrid-mono-alkalisal- zen durch Umsetzung mit Verbindungen der Formel R-NH2, in der R die obige Bedeutung hat, bei 0-130°C erhalten. Die Verbindungen sind Farbmittel bzw. Ausgangsmaterialien für Farbmittel. Compounds of the formula in which R is hydrogen, hydroxyl, amino or optionally substituted alkyl, X is chlorine or bromine and n is zero to 4, are converted from the corresponding perylene-3,4,9,10-tetracarboxylic acid monoanhydride mono-alkali metal salts by reaction with Compounds of the formula R-NH2, in which R has the meaning given above, at 0-130 ° C. The compounds are colorants or starting materials for colorants.
Inventors
- 👤 Ernst Dr. Spietschka
- 👤 Helmut Dr. Tröster
Bibliographic Details
Claims Analysis
Total Claims: 0References Cited (Backward Citations)
No citation records indexed.
USPTO Annuity & Maintenance Windows
Maintenance schedule is calculated for granted US utility patents.